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EP0911490A3 - Double cross type seal device for stationary gas turbine blades - Google Patents

Double cross type seal device for stationary gas turbine bladesDownload PDF

Info

Publication number
EP0911490A3
EP0911490A3EP98119297AEP98119297AEP0911490A3EP 0911490 A3EP0911490 A3EP 0911490A3EP 98119297 AEP98119297 AEP 98119297AEP 98119297 AEP98119297 AEP 98119297AEP 0911490 A3EP0911490 A3EP 0911490A3
Authority
EP
European Patent Office
Prior art keywords
seal
seal plates
plates
end portion
inner shrouds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98119297A
Other languages
German (de)
French (fr)
Other versions
EP0911490B1 (en
EP0911490A2 (en
Inventor
Yasuoki c/o Takasago Mach. Works Tomita
Kenichi c/o Takasago Mach. Works Arase
Naoki c/o Takasago Mach. Works Hagi
Hiroki c/o Takasago Mach. Works Fukuno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries LtdfiledCriticalMitsubishi Heavy Industries Ltd
Publication of EP0911490A2publicationCriticalpatent/EP0911490A2/en
Publication of EP0911490A3publicationCriticalpatent/EP0911490A3/en
Application grantedgrantedCritical
Publication of EP0911490B1publicationCriticalpatent/EP0911490B1/en
Anticipated expirationlegal-statusCritical
Expired - Lifetimelegal-statusCriticalCurrent

Links

Classifications

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Abstract

Seal plates for gas turbine stationary blade innershrouds are made in double cross type seal structure with viewto enhance sealing ability. Seal plates 1, 2 are mutuallylapped and disposed in turbine axial direction between innershrouds 12 of stationary blades 11. End portion seal plate5 is lapped on end portion of the seal plate 2 and end portionseal plate 6 is lapped under end portion of the seal plate1. All these seal plates are fitted with their side endportions being inserted into groove 9a provided in the innershrouds 12. Seal plates 3, 4 and seal plates 7, 8 engagedwith the seal plates 3, 4 are also fitted between flangeportions of the inner shrouds 12 with their side end portionsbeing inserted into grooves 10a, 10b and grooves 9b, 9c,respectively. All the seal plates 1 to 8 are fitted betweenmutually opposing inner shrouds in turbine circumferentialdirection so as to cover cavity 24 between mutually adjacentshrouds, so that gaps between engaged portions of each sealplates and between the seal plates and seal ring support ring13 are eliminated, thereby seal air 20 is prevented fromleaking from the cavity 24.
EP98119297A1997-10-211998-10-13Double cross type seal device for stationary gas turbine bladesExpired - LifetimeEP0911490B1 (en)

Applications Claiming Priority (3)

Application NumberPriority DateFiling DateTitle
JP28841597AJP3462732B2 (en)1997-10-211997-10-21 Double cross seal device for gas turbine vane
JP288415971997-10-21
JP288415/971997-10-21

Publications (3)

Publication NumberPublication Date
EP0911490A2 EP0911490A2 (en)1999-04-28
EP0911490A3true EP0911490A3 (en)2000-07-19
EP0911490B1 EP0911490B1 (en)2003-04-02

Family

ID=17729925

Family Applications (1)

Application NumberTitlePriority DateFiling Date
EP98119297AExpired - LifetimeEP0911490B1 (en)1997-10-211998-10-13Double cross type seal device for stationary gas turbine blades

Country Status (5)

CountryLink
US (1)US6079944A (en)
EP (1)EP0911490B1 (en)
JP (1)JP3462732B2 (en)
CA (1)CA2251192C (en)
DE (1)DE69812837T2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US20060024292A1 (en)*2001-12-272006-02-02Gerngross Tillman UImmunoglobulins comprising predominantly a Gal2GlcNAc2Man3GlcNAc2 glycoform
US6648332B1 (en)*2002-07-292003-11-18General Electric CompanySteam turbine packing casing horizontal joint seals and methods of forming the seals
US6733234B2 (en)2002-09-132004-05-11Siemens Westinghouse Power CorporationBiased wear resistant turbine seal assembly
US6883807B2 (en)2002-09-132005-04-26Seimens Westinghouse Power CorporationMultidirectional turbine shim seal
US6971844B2 (en)*2003-05-292005-12-06General Electric CompanyHorizontal joint sealing system for steam turbine diaphragm assemblies
FR2869070B1 (en)*2004-04-152008-10-17Snecma Moteurs Sa TURBINE RING
FR2869943B1 (en)*2004-05-042006-07-28Snecma Moteurs Sa FIXED RING ASSEMBLY OF A GAS TURBINE
US20090096174A1 (en)*2007-02-282009-04-16United Technologies CorporationBlade outer air seal for a gas turbine engine
US8439639B2 (en)*2008-02-242013-05-14United Technologies CorporationFilter system for blade outer air seal
US20110255958A1 (en)*2010-04-162011-10-20General Electric CompanySeal member for hot gas path component
US8201834B1 (en)*2010-04-262012-06-19Florida Turbine Technologies, Inc.Turbine vane mate face seal assembly
FR2968350B1 (en)*2010-12-062016-01-29Snecma SECTORIZED TURBINE RING FOR TURBOMACHINE, AND TURBOMACHINE EQUIPPED WITH SUCH A RING
RU2536443C2 (en)2011-07-012014-12-27Альстом Текнолоджи ЛтдTurbine guide vane
EP2762679A1 (en)*2013-02-012014-08-06Siemens AktiengesellschaftGas Turbine Rotor Blade and Gas Turbine Rotor
US20140348642A1 (en)*2013-05-022014-11-27General Electric CompanyConjoined gas turbine interface seal
EP3000982A1 (en)2014-09-292016-03-30Siemens AktiengesellschaftAssembly for sealing the gap between two segments of a vane ring
KR102821442B1 (en)*2022-11-232025-06-16두산에너빌리티 주식회사Turbine vane platform sealing assembly, turbine vane and gas turbine comprising it
US12152493B2 (en)2022-12-092024-11-26Doosan Enerbility Co., Ltd.Turbine vane having sealing assembly, turbine, and turbomachine including same
KR102791366B1 (en)2022-12-122025-04-07두산에너빌리티 주식회사Turbine vane platform sealing assembly, turbine vane and gas turbine comprising it

Citations (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
GB1236366A (en)*1968-05-221971-06-23Westinghouse Electric CorpElastic fluid machine
US4524980A (en)*1983-12-051985-06-25United Technologies CorporationIntersecting feather seals for interlocking gas turbine vanes
US4749333A (en)*1986-05-121988-06-07The United States Of America As Represented By The Secretary Of The Air ForceVane platform sealing and retention means
US5154577A (en)*1991-01-171992-10-13General Electric CompanyFlexible three-piece seal assembly
US5709530A (en)*1996-09-041998-01-20United Technologies CorporationGas turbine vane seal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US3519366A (en)*1968-05-221970-07-07Westinghouse Electric CorpTurbine diaphragm seal structure
US3542483A (en)*1968-07-171970-11-24Westinghouse Electric CorpTurbine stator structure
CH525419A (en)1970-12-181972-07-15Bbc Sulzer Turbomaschinen Sealing device for turbo machines
US3975114A (en)1975-09-231976-08-17Westinghouse Electric CorporationSeal arrangement for turbine diaphragms and the like
US5249920A (en)*1992-07-091993-10-05General Electric CompanyTurbine nozzle seal arrangement
US5655876A (en)*1996-01-021997-08-12General Electric CompanyLow leakage turbine nozzle
US5868398A (en)*1997-05-201999-02-09United Technologies CorporationGas turbine stator vane seal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
GB1236366A (en)*1968-05-221971-06-23Westinghouse Electric CorpElastic fluid machine
US4524980A (en)*1983-12-051985-06-25United Technologies CorporationIntersecting feather seals for interlocking gas turbine vanes
US4749333A (en)*1986-05-121988-06-07The United States Of America As Represented By The Secretary Of The Air ForceVane platform sealing and retention means
US5154577A (en)*1991-01-171992-10-13General Electric CompanyFlexible three-piece seal assembly
US5709530A (en)*1996-09-041998-01-20United Technologies CorporationGas turbine vane seal

Also Published As

Publication numberPublication date
EP0911490B1 (en)2003-04-02
EP0911490A2 (en)1999-04-28
CA2251192C (en)2002-01-01
DE69812837T2 (en)2004-03-04
US6079944A (en)2000-06-27
JPH11117707A (en)1999-04-27
JP3462732B2 (en)2003-11-05
DE69812837D1 (en)2003-05-08
CA2251192A1 (en)1999-04-21

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